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Use existing alias as external table name

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This commit is contained in:
Ivan Lezhankin 2019-09-13 16:25:24 +03:00
parent a3944624a0
commit dc49303baf
1 changed files with 8 additions and 4 deletions
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12
dbms/src/Interpreters/GlobalSubqueriesVisitor.h
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@ -78,12 +78,16 @@ public:
return;
}
/// Generate the name for the external table.
String external_table_name = "_data" + toString(external_table_id);
while (external_tables.count(external_table_name))
String external_table_name = subquery_or_table_name->tryGetAlias();
if (external_table_name.empty())
{
++external_table_id;
/// Generate the name for the external table.
external_table_name = "_data" + toString(external_table_id);
while (external_tables.count(external_table_name))
{
++external_table_id;
external_table_name = "_data" + toString(external_table_id);
}
}
auto interpreter = interpretSubquery(subquery_or_table_name, context, subquery_depth, {});